| clinical west nile virus infection in 2 horses in western canada. | two horses had a history of ataxia and weakness or recumbency. one recovered and was diagnosed with west nile virus (wnv) infection by serologic testing. the other was euthanized; it had meningoencephalomyelitis, wnv was detected by polymerase chain reaction. west nile virus infection is an emerging disease. year 2002 is the first year in which cases have been seen in saskatchewan. | 2004 | 15144104 |
| prediction of human cases of west nile virus by equine cases, saskatchewan, canada, 2003. | in 2003, an outbreak of west nile virus (wnv) occurred in saskatchewan, canada from july to september. one-hundred thirty-three horse cases and 947 human cases were recorded and data were analyzed retrospectively for evidence of clustering to determine if clinical infection in the horse population could be used to estimate human risk of infection with wnv. kulldorff's scan statistic was used to identify spatial-temporal clusters in both the human and horse cases. in most areas, human clusters we ... | 2006 | 16806542 |
| factors associated with west nile virus disease fatalities in horses. | in 2003, the occurrence and location of horses with clinical signs of west nile virus infection were identified in the southern portion of saskatchewan with the help of veterinarians, owners, and the regional laboratory. a total of 133 clinical cases were reported between july 30 and september 19, 2003; however, postseason surveillance suggests that the number of cases was underestimated. the case fatality rate was 43.8% (95% ci 35.2, 52.4). factors associated with fatality in clinical cases inc ... | 2007 | 18050794 |
| a case-control study of factors associated with development of clinical disease due to west nile virus, saskatchewan 2003. | west nile virus (wnv) was first diagnosed in saskatchewan equids in 2002. awnv epidemic was considered highly likely for 2003, which would provide a unique opportunity to study all aspects of wnv subclinical infection and clinical disease development in a relatively naive population. | 2007 | 18065306 |